Lady Gaga to Debut New Single at Men's Fashion Show 3.43K Brian Moylan 01/17/11 04:29PM Filed to: Music Music lady gaga thierry mugler the '90s Fashion Paris Gettypic Tweetg Tweetd Lady Gaga will serve as musical director and debut a new single at the Paris fashion show for Thierry Mugler. An odd choice, but Lady G is no fool—she sees the '90s revival just around the corner.